US4281322A - Fuse blowing detector - Google Patents

Fuse blowing detector Download PDF

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Publication number
US4281322A
US4281322A US06/075,181 US7518179A US4281322A US 4281322 A US4281322 A US 4281322A US 7518179 A US7518179 A US 7518179A US 4281322 A US4281322 A US 4281322A
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United States
Prior art keywords
terminal
switch
fuse
source
fuses
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US06/075,181
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English (en)
Inventor
Tetsuji Nasu
Mitsuyoshi Nagayama
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Nissan Motor Co Ltd
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Nissan Motor Co Ltd
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Publication date
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
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Publication of US4281322A publication Critical patent/US4281322A/en
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/30—Means for indicating condition of fuse structurally associated with the fuse
    • H01H85/32—Indicating lamp structurally associated with the protective device

Definitions

  • the present invention relates generally to a device for detecting whether any one of a number of fuses in an electrical system has blown out.
  • a machine such as an automobile, which incorporates a large number of electrical devices, such as ignition loads, radio sets, various different lamps, etc., requires a relatively large number of fuses for protecting the loads from excessive current, and for guarding against fire and so on caused by short circuits.
  • Various devices have been proposed for detecting whether any of thses fuses have been blown out.
  • a fuse blowing detector such as shown in FIG. 1 of the accompanying drawings has been suggested.
  • an automobile has an electric system which includes loads L1, L2, L3 fed from a battery 1 through an accessory switch SW1, loads L4 and L5 fed through an ignition switch SW2, and loads L6 and L7 fed directly from the battery. These loads L1-L7 are fused by fuses F1-F7 respectively.
  • the fuse blowing detector shown in FIG. 1 includes wires to each of the junctions between a fuse and its load, and a slidable changeover switch 2 which has a plurality of fixed contact points 2a connected to the other ends of these wires.
  • the slidable contact 2b is capable of contacting each of these fixed contacts, by the movement of a slide lever 3 and an indicator lamp 4 having one terminal connected to the slidable contact 2b and an other terminal to the earth of the vehicle.
  • the ignition switch SW2 and the accessory switch SW1 are closed, and the slide lever 3 is moved to and fro. If all the fuses are intact, the lamp 4 is lighted each time slidable contact 2b and a fixed engage 2a contact. However, if any one of the fuses is blown, contact between slide lever 3 and the corresponding fixed contact, does not cause lamp 4 to light, thereby signalling blowing of the fuse.
  • This detector has certain disadvantages because the use of a mechanical part, such as the slide lever 3, makes the detector prone to malfunctions. Another disadvantage is that the number of movements of the slide lever 3 for each test sequence is equal to the number of fuses. Further, use of only one lamp has made it difficult to know which fuse is defective.
  • a first terminal of an electrical source is connected to first terminals of a plurality of fuses, having second terminals of fuses connected to the first terminals of the same number of loads.
  • the other terminals of the loads are connected to the other terminal of the electrical source, whereby the loads are supplied with electrical power via their respective fuses.
  • a device for detecting the blowing of any one of the fuses comprises, for each fuse, a light emitting element, having one terminal connected to the second terminal of the fuse.
  • a common switch for all of the light emitting elements has one terminal connected to all the other terminals of all the light emitting elements. The other terminal of the switch is connected to the other terminal of the electrical source.
  • the light emitting elements are light emitting diodes.
  • the polarities of the source and the diodes is such that, if the switch is closed, and a fuse is intact, the corresponding diode is lit.
  • FIG. 1 is a diagram of a prior art fuse blowing detector, associated with an electrical circuit of an automobile, as described supra.
  • FIG. 2 is a diagram, similar to FIG. 1, of a preferred embodiment of the present invention.
  • FIG. 3 is a perspective view of a block, in which fuses and light emitting elements are arranged together in an easily visible view, and an easily operable fixed switch;
  • FIG. 4 is a view, similar to FIG. 3, of another embodiment of the present invention, wherein a cover is shown as removed;
  • FIG. 5 is a perspective exploded view of an automobile fuse device in which the present invention is applied.
  • FIG. 2 there is shown a circuit diagram of a preferred embodiment of the present invention, associated with an electrical circuit powered by a DC source 1, typically an automobile battery having a grounded negative terminal and a positive terminal.
  • the terminals of source 1 are connected via plural fuses F1-F7 to plural parallel loads L1-L7.
  • the condition of fuses F1-F7 is detected by light emitting elements D1-D7.
  • the number of light emitting elements D1-D7 preferably light emitting diodes, is equal to the number of fuses F1-F7.
  • the anodes of diodes D1-D7 are respectively connected to junction points between fuses F1-F7 and shunt loads L1-L7.
  • the cathodes of all the light emitting diodes D1-D7 are connected together to a common junction, connected via switch 5 to the ground terminal of source 1, i.e., the terminal of source 1 which is not connected to fuses F1-F7. If the polarity of battery 1 is opposite to that shown, the polarity of diodes D1-D7 is reversed so, that, if a fuse is intact, and switch 5 is closed, the corresponding diode is lit.
  • FIG. 3 is a perspective view of an embodiment of the present invention in which diodes D1-D7 and fuses F1-F7 are arranged in one-to-one correspondence with one another. Diodes D1-D7 and fuses F1-F7 are easily visible in block 6 which carries switch 6 so that the switch can be easily operated.
  • FIG. 4 is an exploded perspective view of another embodiment, wherein the switch 5' is a normally closed switch that is usually open circuited by engagement with a face of the cover 7 that contacts the portion of block 6 from which switch 5' extends. When, however, cover 7 is removed from block 6, switch 5' is automatically closed so light-emitting diodes D1-D7 automatically show which fuses F1-F7, if any, are blown.
  • block 6 may be part of an automobile instrument panel having a cover 7.
  • FIG. 5 a particular type of automobile fuse device to which the present invention is applied.
  • the fuse device includes a housing 8a made of transparent electrically insulating resin material.
  • housing 8a In housing 8a are two spaced electrically conducting terminal strips 8b and 8c, which are normally electrically connected by a fuse F, which bridges a gap between the strips. If fuse F blows, strips 8b and 8c are electrically insulated from each other.
  • Strips 8b and 8c espectively include ends 8b1 and 8c1 which fit into elongated rectangular openings 8a1 and 8a2 at the top of housing 8a.
  • Strips 8b and 8c have shoulders 8b2 and 8c2 that abut on corresponding shoulders in housing 8a.
  • the top of housing 8a includes elongated rectangular opening 8a3 into which is fitted end tab 8d1 of a third electrically conducting auxiliary terminal strip8d, end tab 8d1 extends from shoulder 8d2 of strip 8d.
  • the top of housing 8a includes a circular groove 8e between openings 8a2 and 8a3, whereby diode D and its connecting wires are held in situ between interior strip 8c and strip 8d at the outside of the housing.
  • the lower ends of the terminal strips 8b, 8c and 8d are plugged into female plugs (not shown), for easy replacement.
  • Strip 8b is connected to battery 1; strip 8c is connected to load L for a particular branch energized by battery 1; and strip 8d is connected, along with all the other strips 8d', 8d", etc., of the other similar fuse devices, to resistor Ro and switch 5 for testing the fuses F.
  • closing of switch 5 completes a circuit which shows immediately which of fuses F1-F7 is blown, because the diode associated with the branch is not lit.
  • housing 8 is formed asymmetrically, or marked in some way.
  • the illustrated embodiment is suitable for applications in which the entire fuse elment for a branch, including housing 8 and the diode D for the particular branch, is discarded when the fuse for the branch is blown out, and a new fuse element replaces the discarded element is used.

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  • Fuses (AREA)
US06/075,181 1978-10-04 1979-09-12 Fuse blowing detector Expired - Lifetime US4281322A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1978135498U JPS5552757U (zh) 1978-10-04 1978-10-04
JP53-135498[U] 1978-10-04

Publications (1)

Publication Number Publication Date
US4281322A true US4281322A (en) 1981-07-28

Family

ID=15153142

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/075,181 Expired - Lifetime US4281322A (en) 1978-10-04 1979-09-12 Fuse blowing detector

Country Status (5)

Country Link
US (1) US4281322A (zh)
JP (1) JPS5552757U (zh)
DE (1) DE2940142A1 (zh)
FR (1) FR2438335A1 (zh)
GB (1) GB2034542B (zh)

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4541311A (en) * 1982-05-03 1985-09-17 Idea Pioneer, Inc. Fuse puller
US4604613A (en) * 1984-06-18 1986-08-05 Phoenix Electric Corporation Status-indicating current interrupter
US4857896A (en) * 1987-10-19 1989-08-15 Square D Company Polyphase circuit fuse condition indicating device
US5099199A (en) * 1990-10-03 1992-03-24 Milton J. LeFebre Device for testing fuses
US5153523A (en) * 1990-11-23 1992-10-06 Joseph Samaniego Selective fused circuit continuity test apparatus
US5334939A (en) * 1992-11-13 1994-08-02 Cooper Industries, Inc. Ground fault circuit breaker test circuit for panelboards having minimum penetrations and testing circuit breakers without opening panelboard enclosure
US5343192A (en) * 1992-09-10 1994-08-30 At&T Bell Laboratories Fuse or circuit breaker status indicator
EP0805487A2 (en) * 1996-05-02 1997-11-05 Applied Materials, Inc. Multielectrode electrostatic chuck with fuses
US5701118A (en) * 1996-02-20 1997-12-23 Hull; Harold L. Blown fuse indicator circuit and fuse cap, including a method of use therefore
US5739737A (en) * 1996-04-29 1998-04-14 Hatton; Ken W. Blown fuse indicator
US5874884A (en) * 1997-07-21 1999-02-23 Hull; Harold L. Blown fuse indicator circuit including a light housing containing a light source and method of use
US5986557A (en) * 1998-03-10 1999-11-16 Automatic Timing & Controls, Inc. Three-phase fuse status indicator
US6055150A (en) * 1996-05-02 2000-04-25 Applied Materials, Inc. Multi-electrode electrostatic chuck having fuses in hollow cavities
US6317443B1 (en) * 1996-07-09 2001-11-13 Jds Uniphase Corporation High power, reliable optical fiber pumping system with high redundancy for use in lightwave communication systems
US6492799B1 (en) 1999-06-17 2002-12-10 Abb Research Ltd Monitor circuit for a current limiting device
US6703917B2 (en) * 2001-10-10 2004-03-09 The United States Of America As Represented By The Secretary Of The Navy Resettable fuse/circuit interrupter with visual fault indication
US20040257191A1 (en) * 2001-08-31 2004-12-23 Rudiger Muller Fuse component comprising an optical indicator
US20050036259A1 (en) * 2003-08-15 2005-02-17 Wolfgang Hokenmaier Reduced power consumption in integrated circuits with fuse controlled redundant circuits
US20050035842A1 (en) * 2003-08-15 2005-02-17 Chuan Shyu Light emitting fuse having quick indication function
US20050111156A1 (en) * 2003-11-24 2005-05-26 The United States Of America As Represented By The Secretary Of The Army Continuous status indicator for electrical protection device
US20050231320A1 (en) * 2004-04-20 2005-10-20 Ackermann John M Wireless communication fuse state indicator system and method
ES2249120A1 (es) * 2004-02-18 2006-03-16 Ramon Comellas Fuste Dispositivo detector de fusion de fusibles de instalaciones electricas.
US20060077607A1 (en) * 2004-09-10 2006-04-13 Henricks Michael C Circuit protector monitoring assembly kit and method
US20060087397A1 (en) * 2004-10-26 2006-04-27 Cooper Technologies Company Fuse state indicating optical circuit and system
US20070103828A1 (en) * 2005-11-08 2007-05-10 Symcom, Inc. Methods and systems for detecting a protection device operation
US20070194942A1 (en) * 2004-09-10 2007-08-23 Darr Matthew R Circuit protector monitoring assembly, system and method
US20070257807A1 (en) * 2004-09-10 2007-11-08 Darr Matthew R Circuit protector monitoring assembly
US20080048819A1 (en) * 2005-05-05 2008-02-28 Cooper Technologies Company Modular Fuseholders With Wireless Communication Capabilities
US20080231410A1 (en) * 2004-04-20 2008-09-25 Frank Anthony Doljack RFID Open Fuse Indicator, System, and Method
US20100033293A1 (en) * 2008-08-06 2010-02-11 Wen-Tsung Cheng Fuse assembly with a capability of indicating a fusing state by light
US20100033294A1 (en) * 2008-08-06 2010-02-11 Wen-Tsung Cheng Fuse seat with prompting function
US7683752B1 (en) 2007-01-05 2010-03-23 Huss Roy A Fuse box system
US7772959B2 (en) * 2008-08-06 2010-08-10 Wen-Tsung Cheng Fuse seat having light-emitting module of hidden type
US20110163838A1 (en) * 2010-01-06 2011-07-07 Wen-Tsung Cheng Combination-type fuse
US20110163839A1 (en) * 2010-01-06 2011-07-07 Wen-Tsung Cheng Fuse structure with power disconnection light indicating function
US20110175699A1 (en) * 2007-01-05 2011-07-21 Roy Allen Huss Fuse box system and method
US20120105239A1 (en) * 2009-04-17 2012-05-03 Bruno Levi Fault signaling device, particularly for electrical apparatuses such as interlocked sockets
US8395473B1 (en) 2007-01-05 2013-03-12 Hussco, NC, LLC Fuse box system
US20130329332A1 (en) * 2012-06-07 2013-12-12 Austin J. Funcheon Power line indicator accessory for fusible circuit protection device array
US20150287564A1 (en) * 2014-04-04 2015-10-08 Eaton Corporation Remote Fuse Operation Indicator Assemblies and Related Systems and Methods

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3427540A1 (de) * 1984-07-26 1986-02-06 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart Vorrichtung zum pruefen von sicherungen
FR2730814B1 (fr) * 1995-02-20 1997-04-30 Peugeot Dispositif de surveillance de l'etat de fusibles de protection d'organes fonctionnels d'un vehicule automobile
GB2323981A (en) * 1997-04-01 1998-10-07 Care Slade Wayne Paul Indicator lamp and electric fuse
DE102017101293A1 (de) 2017-01-24 2018-07-26 Lisa Dräxlmaier GmbH Schmelzsicherung und stromverteiler mit schmelzsicherung

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2317030A (en) * 1939-07-21 1943-04-20 Rca Corp Fuse indicating system
US2774960A (en) * 1954-01-06 1956-12-18 Howard I Podell Current failure indicator
US3139499A (en) * 1960-08-05 1964-06-30 Fuse Indicator Corp Fuse adapter
US3163728A (en) * 1962-03-28 1964-12-29 Howard F Martin Combination safety socket and fuse box
US3218413A (en) * 1964-10-26 1965-11-16 Koch Rudolf Fused connecting plug having fuses which can be removed without dis-assembly of the housing and an indicating lamp for indicating a fuse disruption
US3225163A (en) * 1961-03-28 1965-12-21 Ulle C Linton Indicator fuseholder with current responsive device
US3465280A (en) * 1966-04-12 1969-09-02 Bassani Spa Fuse-holder
US3546692A (en) * 1968-12-16 1970-12-08 Chase Shawmut Co Combined optical and acoustical blown fuse indicator
US3699433A (en) * 1970-11-24 1972-10-17 Raymond Peter Smith Jr Short circuit locator apparatus including a plurality of intermittently operated circuit breakers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH348453A (de) * 1957-04-24 1960-08-31 Schurter Ag H Einrichtung mit Sicherung und Anzeigelämpchen
FR2373146A1 (fr) * 1976-12-02 1978-06-30 Hager Electro Perfectionnements aux coupe-circuits d'installations electriques domestiques et aux tableaux qui en sont munis
DE2722008A1 (de) * 1977-05-14 1978-11-16 Kromberg & Schubert Stecksicherung

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2317030A (en) * 1939-07-21 1943-04-20 Rca Corp Fuse indicating system
US2774960A (en) * 1954-01-06 1956-12-18 Howard I Podell Current failure indicator
US3139499A (en) * 1960-08-05 1964-06-30 Fuse Indicator Corp Fuse adapter
US3225163A (en) * 1961-03-28 1965-12-21 Ulle C Linton Indicator fuseholder with current responsive device
US3163728A (en) * 1962-03-28 1964-12-29 Howard F Martin Combination safety socket and fuse box
US3218413A (en) * 1964-10-26 1965-11-16 Koch Rudolf Fused connecting plug having fuses which can be removed without dis-assembly of the housing and an indicating lamp for indicating a fuse disruption
US3465280A (en) * 1966-04-12 1969-09-02 Bassani Spa Fuse-holder
US3546692A (en) * 1968-12-16 1970-12-08 Chase Shawmut Co Combined optical and acoustical blown fuse indicator
US3699433A (en) * 1970-11-24 1972-10-17 Raymond Peter Smith Jr Short circuit locator apparatus including a plurality of intermittently operated circuit breakers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Fuse Monitor for Cars", Practical Electronics, vol. 12, #3, p. 239, Mar. 1979. *

Cited By (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4541311A (en) * 1982-05-03 1985-09-17 Idea Pioneer, Inc. Fuse puller
US4604613A (en) * 1984-06-18 1986-08-05 Phoenix Electric Corporation Status-indicating current interrupter
US4857896A (en) * 1987-10-19 1989-08-15 Square D Company Polyphase circuit fuse condition indicating device
US5099199A (en) * 1990-10-03 1992-03-24 Milton J. LeFebre Device for testing fuses
US5153523A (en) * 1990-11-23 1992-10-06 Joseph Samaniego Selective fused circuit continuity test apparatus
US5343192A (en) * 1992-09-10 1994-08-30 At&T Bell Laboratories Fuse or circuit breaker status indicator
US5334939A (en) * 1992-11-13 1994-08-02 Cooper Industries, Inc. Ground fault circuit breaker test circuit for panelboards having minimum penetrations and testing circuit breakers without opening panelboard enclosure
US5701118A (en) * 1996-02-20 1997-12-23 Hull; Harold L. Blown fuse indicator circuit and fuse cap, including a method of use therefore
US5739737A (en) * 1996-04-29 1998-04-14 Hatton; Ken W. Blown fuse indicator
US6055150A (en) * 1996-05-02 2000-04-25 Applied Materials, Inc. Multi-electrode electrostatic chuck having fuses in hollow cavities
EP0805487A3 (en) * 1996-05-02 1999-08-04 Applied Materials, Inc. Multielectrode electrostatic chuck with fuses
US5751537A (en) * 1996-05-02 1998-05-12 Applied Materials, Inc. Multielectrode electrostatic chuck with fuses
EP0805487A2 (en) * 1996-05-02 1997-11-05 Applied Materials, Inc. Multielectrode electrostatic chuck with fuses
US6317443B1 (en) * 1996-07-09 2001-11-13 Jds Uniphase Corporation High power, reliable optical fiber pumping system with high redundancy for use in lightwave communication systems
US5874884A (en) * 1997-07-21 1999-02-23 Hull; Harold L. Blown fuse indicator circuit including a light housing containing a light source and method of use
US5986557A (en) * 1998-03-10 1999-11-16 Automatic Timing & Controls, Inc. Three-phase fuse status indicator
US6492799B1 (en) 1999-06-17 2002-12-10 Abb Research Ltd Monitor circuit for a current limiting device
US7570147B2 (en) * 2001-08-31 2009-08-04 Osram Opto Semiconductors Gmbh Fuse component comprising an optical indicator
US20040257191A1 (en) * 2001-08-31 2004-12-23 Rudiger Muller Fuse component comprising an optical indicator
US6703917B2 (en) * 2001-10-10 2004-03-09 The United States Of America As Represented By The Secretary Of The Navy Resettable fuse/circuit interrupter with visual fault indication
US7112895B2 (en) * 2003-08-15 2006-09-26 Infineon Technologies Ag Reduced power consumption in integrated circuits with fuse controlled redundant circuits
US20050035842A1 (en) * 2003-08-15 2005-02-17 Chuan Shyu Light emitting fuse having quick indication function
US20050036259A1 (en) * 2003-08-15 2005-02-17 Wolfgang Hokenmaier Reduced power consumption in integrated circuits with fuse controlled redundant circuits
US20050111156A1 (en) * 2003-11-24 2005-05-26 The United States Of America As Represented By The Secretary Of The Army Continuous status indicator for electrical protection device
ES2249120A1 (es) * 2004-02-18 2006-03-16 Ramon Comellas Fuste Dispositivo detector de fusion de fusibles de instalaciones electricas.
US20050231320A1 (en) * 2004-04-20 2005-10-20 Ackermann John M Wireless communication fuse state indicator system and method
US8134445B2 (en) * 2004-04-20 2012-03-13 Cooper Technologies Company RFID open fuse indicator, system, and method
US20080231410A1 (en) * 2004-04-20 2008-09-25 Frank Anthony Doljack RFID Open Fuse Indicator, System, and Method
US7369029B2 (en) * 2004-04-20 2008-05-06 Cooper Technologies Company Wireless communication fuse state indicator system and method
US20070194942A1 (en) * 2004-09-10 2007-08-23 Darr Matthew R Circuit protector monitoring assembly, system and method
US8169331B2 (en) 2004-09-10 2012-05-01 Cooper Technologies Company Circuit protector monitoring assembly
US20060087785A1 (en) * 2004-09-10 2006-04-27 Bender Robert L Circuit protector signal transmission, methods and system
US20070257807A1 (en) * 2004-09-10 2007-11-08 Darr Matthew R Circuit protector monitoring assembly
US8059005B2 (en) 2004-09-10 2011-11-15 Cooper Technologies Company Circuit protector monitoring assembly kit and method
US20060077607A1 (en) * 2004-09-10 2006-04-13 Henricks Michael C Circuit protector monitoring assembly kit and method
US7391299B2 (en) 2004-09-10 2008-06-24 Cooper Technologies Company Circuit protector monitoring and management system user interface method, system and program
US20060077608A1 (en) * 2004-09-10 2006-04-13 Speno Timothy H Multifunctional response tool, method and system for circuit protector management
US20060077609A1 (en) * 2004-09-10 2006-04-13 Bender Robert L System and method for circuit protector monitoring and management
US7576635B2 (en) 2004-09-10 2009-08-18 Cooper Technologies Company Circuit protector signal transmission, methods and system
US7612654B2 (en) 2004-09-10 2009-11-03 Cooper Technologies Company System and method for circuit protector monitoring and management
US20060087397A1 (en) * 2004-10-26 2006-04-27 Cooper Technologies Company Fuse state indicating optical circuit and system
US20080048819A1 (en) * 2005-05-05 2008-02-28 Cooper Technologies Company Modular Fuseholders With Wireless Communication Capabilities
US20070103828A1 (en) * 2005-11-08 2007-05-10 Symcom, Inc. Methods and systems for detecting a protection device operation
US8395473B1 (en) 2007-01-05 2013-03-12 Hussco, NC, LLC Fuse box system
US7683752B1 (en) 2007-01-05 2010-03-23 Huss Roy A Fuse box system
US20110175699A1 (en) * 2007-01-05 2011-07-21 Roy Allen Huss Fuse box system and method
US7839258B2 (en) * 2008-08-06 2010-11-23 Wen-Tsung Cheng Fuse assembly with a capability of indicating a fusing state by light
US20100033294A1 (en) * 2008-08-06 2010-02-11 Wen-Tsung Cheng Fuse seat with prompting function
US20100033293A1 (en) * 2008-08-06 2010-02-11 Wen-Tsung Cheng Fuse assembly with a capability of indicating a fusing state by light
US7772959B2 (en) * 2008-08-06 2010-08-10 Wen-Tsung Cheng Fuse seat having light-emitting module of hidden type
US20120105239A1 (en) * 2009-04-17 2012-05-03 Bruno Levi Fault signaling device, particularly for electrical apparatuses such as interlocked sockets
US8164411B2 (en) * 2010-01-06 2012-04-24 Wen-Tsung Cheng Fuse structure with power disconnection light indicating function
US8169291B2 (en) * 2010-01-06 2012-05-01 Wen-Tsung Cheng Combination-type fuse
US20110163839A1 (en) * 2010-01-06 2011-07-07 Wen-Tsung Cheng Fuse structure with power disconnection light indicating function
US20110163838A1 (en) * 2010-01-06 2011-07-07 Wen-Tsung Cheng Combination-type fuse
US20130329332A1 (en) * 2012-06-07 2013-12-12 Austin J. Funcheon Power line indicator accessory for fusible circuit protection device array
US9170293B2 (en) * 2012-06-07 2015-10-27 Cooper Technologies Company Power line indicator accessory for fusible circuit protection device array
US20150287564A1 (en) * 2014-04-04 2015-10-08 Eaton Corporation Remote Fuse Operation Indicator Assemblies and Related Systems and Methods
US9583297B2 (en) * 2014-04-04 2017-02-28 Eaton Corporation Remote fuse operation indicator assemblies and related systems and methods
US10283310B2 (en) 2014-04-04 2019-05-07 Eaton Intelligent Power Limited Remote fuse operation indicator assemblies and related systems and methods

Also Published As

Publication number Publication date
JPS5552757U (zh) 1980-04-08
GB2034542B (en) 1983-01-19
GB2034542A (en) 1980-06-04
DE2940142A1 (de) 1980-04-10
FR2438335A1 (fr) 1980-04-30

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